@Mostlighting's Spray Can Holder might just be the solution to your growing (and messy) collection of spray cans. You can daisy chain as many as you need, which means you're only limited by available wall space. Print some and get your workshop in order.
Have you been trying to rationalize the purchase of a Korg Volca? Here's a great reason to buy three. @alan_one's Rack For 3x KORG Volca Units lets you set up these musical machines as if they're a tiny modular synthesizer system. Excellent.